package com.yami.shop.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.yami.shop.bean.model.OldUser;

public interface OldUserService extends IService<OldUser> {

    /**
     * 根据用户和店铺Id查询用户在当前店铺的余额
     */
    OldUser getOldUserByShopId(String userId,Long shopId);
}
